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Hydraulic and Operational Performance of Irrigation Schemes in View of Water Saving and Sustainability
- Sugar Estates and Community Managed Schemes in Ethiopia
Engelsk
Bogcover for Hydraulic and Operational Performance of Irrigation Schemes in View of Water Saving and Sustainability af Zeleke Agide Dejen, 9781138027671
Specifikationer
Sprog:
Engelsk
Sider:
180
ISBN-13:
9781138027671
Indbinding:
Paperback
ISBN-10:
1138027677
Udg. Dato:
9 apr 2015
Størrelse i cm:
24,0 x 17,0
Oplagsdato:
9 apr 2015
Forfatter(e):

Hydraulic and Operational Performance of Irrigation Schemes in View of Water Saving and Sustainability

- Sugar Estates and Community Managed Schemes in Ethiopia
Engelsk
Paperback 2015
Format:

Bog beskrivelse

The rate of global increase in water abstraction for irrigation has been declining since the 1970’s due to declining potentials for large and medium-scale irrigation developments, and is expected to further decline in the next decades. As such the significant proportion of the expected increase in production would have to be supplied from existing irrigated and /or cultivated lands. This in turn could be achieved by enhancing land and water productivity through improved performance and optimal operation and maintenance.

With less than 15% of over 5 million ha irrigation potential harnessed, irrigation devolvement in Ethiopia remained low. Over 70% of the developed irrigation in the country belongs to small-scale irrigation serving smallholder farmers. While accelerated development of new irrigation, particularly of large and medium-scale schemes is relevant in Ethiopia, ensuring the performance and sustainability of existing schemes is also equally important. The existing irrigation schemes in Ethiopia are generally characterized by an overall performance and technical sustainability levels of below expectation.

This thesis evaluates the performance of two large-scale (Wonji-Shoa and Metahara) and two community-managed (Golgota and Wedecha) irrigation schemes located in the Awash River Basin of Ethiopia. The study focussed on hydraulic/water delivery performance in the large-scale schemes, and on comparative and internal irrigation service (utility) evaluation in the community-managed schemes. Water delivery performance was evaluated using routine data and hydrodynamic modelling. Farmers’ utility was evaluated using qualitative responses of water users. Major performance challenges in each category of schemes were addressed and operational/water management options for improvement were identified.

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Specifikationer
Sprog:
Engelsk
Sider:
180
ISBN-13:
9781138027671
Indbinding:
Paperback
ISBN-10:
1138027677
Udg. Dato:
9 apr 2015
Størrelse i cm:
24,0 x 17,0
Oplagsdato:
9 apr 2015
Forfatter(e):
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